Schweitzer Engineering Laboratories SEL-421-4 - Page 700

12.4
SEL-421 Relay Instruction Manual Date Code 20171021
Analog Quantities
DFDTPM Rate-of-change of frequency for synchrophasor data Hertz/seconds [Hz/s]
DFDTPMD Rate-of-change of frequency for synchrophasor data, delayed for RTC
alignment
Hertz/seconds [Hz/s]
DLDOM Local date, day of the month (1–31) Day
DLDOW Local date, day of the week (1-SU,..., 7-SA) N/A
DLDOY Local date, day of the year (1–366) Day
DLMON Local date, month (1–12) Month
DLYEAR Local date, year (2000–2200) Year
DMON Date, month (1–12) Month
DPFA, DPFB, DPFC Phase displacement power factor N/A
DYEAR Date, year (2000–2200) Year
FLOC Fault location Per unit (pu)
FOSPM Fraction of second of the synchrophasor data packet Seconds [s]
FOSPMD Fraction of second of the synchrophasor data packet, delayed for RTC
alignment
Seconds [s]
FREQ
a
Tracking frequency Hertz [Hz]
FREQP
a
Frequency for under-/overfrequency elements Hertz [Hz]
FREQPM Frequency for synchrophasor data Hertz [Hz]
FREQPMD Frequency for synchrophasor data, delayed for RTC alignment Hertz [Hz]
I1SPMA Positive-sequence synchrophasor current angle, Terminal S Degrees [°] (±180)
I1SPMAD Positive sequence synchrophasor current angle, Terminal S, delayed
for RTC alignment
Degrees [°] (±180)
I1SPMI Positive-sequence synchrophasor current imaginary component,
Terminal S
Amperes [A] (primary)
I1SPMID Positive sequence synchrophasor current imaginary component,
Terminal S, delayed for RTC alignment
Amperes [A] (primary)
I1SPMM Positive-sequence synchrophasor current magnitude, Terminal S Amperes [A] (primary)
I1SPMMD Positive sequence synchrophasor current magnitude, Terminal S,
delayed for RTC alignment
Amperes [A] (primary)
I1SPMR Positive-sequence synchrophasor current real component, Terminal S Amperes [A] (primary)
I1SPMRD Positive sequence synchrophasor current real component, Terminal S,
delayed for RTC alignment
Amperes [A] (primary)
I1WPMA Positive-sequence synchrophasor current angle, Terminal W Degrees [°] (±180)
I1WPMAD Positive sequence synchrophasor current angle, Terminal W, delayed
for RTC alignment
Degrees [°] (±180)
I1WPMI Positive-sequence synchrophasor current imaginary component,
Terminal W
Amperes [A] (primary)
I1WPMID Positive sequence synchrophasor current imaginary component,
Terminal W, delayed for RTC alignment
Amperes [A] (primary)
I1WPMM Positive-sequence synchrophasor current magnitude, Terminal W Amperes [A] (primary)
I1WPMMD Positive sequence synchrophasor current magnitude, Terminal W,
delayed for RTC alignment
Amperes [A] (primary)
I1WPMR Positive-sequence synchrophasor current real component, Terminal W Amperes [A] (primary)
I1WPMRD Positive sequence synchrophasor current real component, Terminal W,
delayed for RTC alignment
Amperes [A] (primary)
Table 12.1 Analog Quantities Sorted Alphabetically (Sheet 4 of 12)
Label Description Unit